If there was ever an Instagram video that we all wish we were a part of, it's definitely this one. Taylor Swift proves once again that she's the ultimate celebrity BFF, hanging out with model Cara Delevingne and Ed Sheeran at the US ambassador's house in London, and (of course) they had an impromptu jam sesh.

The trio snapped a vid of them singing Heartbeats by The Knife, with the incredible Ed on guitar, and Taylor and Cara singing vocals. Is this the ultimate new band?! A girl can dream!

Taylor posted the video on Instagram with the caption, "Me, Ed, Cara. Singing songs in the US ambassador's house. What is life." Watch the awesome clip below:

What do you think of the awesome trio's mini performance? Who else would you love to team up and form a band? Tell us in the comments!

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